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DOI | 10.1029/2020GL087462 |
Oxygen Ion Escape From Venus Is Modulated by Ultra-Low Frequency Waves | |
Jarvinen, Riku1,2; Alho, Markku1; Kallio, Esa1; Pulkkinen, Tuija1,3 | |
2020-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; USA |
英文摘要 | We study the solar wind-driven, nonthermal escape of O(+)ions from Venus in a global hybrid simulation. In the model, a well-developed ion foreshock forms ahead of the Venusian quasi-parallel bow shock under nominal upstream conditions. Large-scale magnetosonic ultra-low frequency (ULF) waves at 20- to 30-s period are excited and convect downstream along the foreshock with the solar wind. We show that the foreshock ULF waves transmit through the bow shock in the downstream region and interact with the planetary ion acceleration, causing 25% peak-to-peak fluctuations in the O(+)escape rate. These results demonstrate the importance of upstream plasma waves on the energization and escape of heavy ions from the planetary atmospheres. |
英文关键词 | Venus solar wind interaction ion escape foreshock ultra-low frequency waves |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000543387400006 |
WOS关键词 | SOLAR-WIND INTERACTION ; MAGNETIC-FIELD ; BOW SHOCK ; PARALLEL SHOCK ; ULF WAVES ; ENERGIZATION ; MARS ; FORESHOCK ; IMPACT ; LOCATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/267589 |
专题 | 气候变化 |
作者单位 | 1.Aalto Univ, Sch Elect Engn, Dept Elect & Nanoengn, Espoo, Finland; 2.Finnish Meteorol Inst, Helsinki, Finland; 3.Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Jarvinen, Riku,Alho, Markku,Kallio, Esa,et al. Oxygen Ion Escape From Venus Is Modulated by Ultra-Low Frequency Waves[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(11). |
APA | Jarvinen, Riku,Alho, Markku,Kallio, Esa,&Pulkkinen, Tuija.(2020).Oxygen Ion Escape From Venus Is Modulated by Ultra-Low Frequency Waves.GEOPHYSICAL RESEARCH LETTERS,47(11). |
MLA | Jarvinen, Riku,et al."Oxygen Ion Escape From Venus Is Modulated by Ultra-Low Frequency Waves".GEOPHYSICAL RESEARCH LETTERS 47.11(2020). |
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